Watching CNN on Youtube suddenly freezes the tab. Randomly. Freezing means nothing can be done. The video simply stops without reloading or buffering. The mouse reacts, the pointer will activate ie highlight a button under the mouse, but when I click a button nothing happens. The tab freezes and nothing can be done. I can't even access the URL or search box. Nothing. I tried moving the tab itself or into another browser window, nothing. This tab is dead. Opening the same video in a new tab works like normal. I tried the usual things like deactivating Bitdefender, but no luck. Any ideas?